What is the structural difference between an aldehyde and a ketone?

1. $\mathrm{\alpha }$-H-atom

2.  H-atom combined with carbonyl group 

3. OH and carbonyl group

4. None of the above

What is the name of a reagent that reacts with both acetaldehyde and ketone?

1. Ammoniacal AgNO₃

2. Rochelle salt

3. 2,4-Dinitrophenylhydrazine

4. All of the above

2-Methyl propene on oxidation with hot KMnO₄ gives:

1. Acetone

2. Ethanoic acid

3. CO₂ and H₂O 

4. Both 1 & 3

Which of the following acids is the strongest?

1. CH₃COOH 

2. C₆H₅COOH

3. C₆H₅OH 

4. C₂H₅COOH

HVZ reaction cannot be given by:

The formation of cyanohydrin from acetone is an example of:

1. Nucleophilic substitution. 

2. Electrophilic substitution.

3. Electrophilic addition. 

4. Nucleophilic addition.

What is product 'B' in the below mentioned reaction?

1.		2.
3.		4.

An alkene “A” on reaction with O₃ and Zn - H₂O gives propanone and ethanal in an equimolar ratio. The addition of HCl to alkene “A” gives “B” as the major product. The structure of product “B” is:

1.		2.
3.		4.

The most reactive compound towards the nucleophilic addition reaction is:

The hydrogenation of benzoyl chloride in the presence of Pd and BaSO₄ gives:

1. Benzyl alcohol

2. Benzaldehyde

3. Benzoic acid

4. Phenol